HEADGEAR APPARATUS FOR NASAL INTERFACE
An improved headgear is structured to secure a mask to the head of a patient and comprises a parietal support, an occipital support, and a zygomatic support connected together. The zygomatic support comprises a pair of zygomatic braces that are each structured to engage the face of the patient and to support the mask in fluid communication with the patient. The zygomatic braces each comprise at least one of a cephalic element structured to engage the face cephalic to the crest of the zygomatic bone, and a caudal element structured to engage the face caudal to the zygomatic bone.
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This patent application claims the priority benefit under 35 U.S.C. §119(e) of U.S. Provisional Application No. 61/511,611 filed on Jul. 26, 2011, the contents of which are herein incorporated by reference.
BACKGROUND OF THE INVENTION1. Field of the Invention
The present invention pertains to respiratory interface devices and, in particular, to headgear for use in securing a mask to a patient.
2. Description of the Related Art
There are numerous situations where it is necessary or desirable to deliver a flow of breathing gas non-invasively to the airway of a patient, i.e., without intubating the patient or surgically inserting a tracheal tube in their esophagus. For example, it is known to ventilate a patient using a technique known as non-invasive ventilation. It is also known to deliver continuous positive airway pressure (CPAP) or variable airway pressure, which varies with the patient's respiratory cycle, to treat a medical disorder such as sleep apnea syndrome in particular, obstructive sleep apnea (OSA), or congestive heart failure.
Non-invasive ventilation and pressure support therapies involve the placement of a respiratory patient interface device including a mask component on the face of a patient. The mask component may be, without limitation, a nasal mask that covers the patient's nose, a nasal cushion having nasal prongs that are received within the patient's nares, a nasal/oral mask that covers the nose and mouth, or full face mask that covers the patient's face. The respiratory patient interface device interfaces the ventilator or pressure support device with the airway of the patient, so that a flow of breathing gas can be delivered from the pressure/flow generating device to the airway of the patient. It is known to maintain such devices on the face of a wearer by a headgear having one or more straps adapted to fit over/around the patient's head. Because such respiratory patient interface devices are typically worn for an extended period of time, it is important for the headgear to maintain the mask component of the device in a tight enough seal against the patient's face without discomfort.
For respiratory patient interface devices, a key engineering challenge is to balance patient comfort against stability of the device. As a patient changes sleeping positions through the course of the night, the mask portions of respiratory patient interface devices may become dislodged, and the seal against the patient may be broken. A dislodged mask portion can be stabilized by the increasing strapping force provided by the headgear, but increased strapping force tends to reduce patient comfort. This design conflict is further complicated by the widely varying facial geometries that a given respiratory patient interface device design needs to accommodate.
SUMMARY OF THE INVENTIONAccordingly, it is an object of the present invention to provide a headgear for use in securing a respiratory patient interface to the head of a patient that overcomes the shortcomings of conventional headgear.
This object is achieved according to at least one embodiment of the present invention by providing an improved headgear for use in securing a nasal pillow interface to the head of a patient. The headgear can be characterized as including parietal support, an occipital support, and a zygomatic support that together form the headgear and which is used to secure the nasal pillow interface to the patient. In a number of the embodiments of the headgear, the zygomatic support includes a zygomatic brace that is configured to be situated across the zygomatic bone or caudal to the zygomatic bone of the patient in order to maintain desirable positioning of the headgear and the nasal pillow interface. As employed herein, the expression “a number of and variations thereof shall refer broadly to any non-zero quantity, including a quantity of one. As employed herein, the expressions “cheekbone”, “zygomatic bone”, “zygomatic arch”, and “zygomatic crest” refer broadly and generally to any one or more of a variety of facial features such as the zygomatic bone, the zygomatic process of the temporal bone, the temporal process of the zygomatic bone, and/or the soft tissue or other structures in the zygomatic region of a patient.
In a number of embodiments the zygomatic support includes a number of stiffening structures that enhance the rigidity of the zygomatic support in certain planes while still maintaining flexibility in other planes. Additionally or alternatively, the parietal support or the occipital support or both can include such stiffening structures. Moreover, it is expressly noted that any of the various features of the various depicted embodiments can be combined in any fashion with any of the features of other embodiments in any combination to result in additional embodiments that are not expressly depicted herein but are nevertheless considered to be within the scope of the disclosure.
In certain of the embodiments depicted herein, the headgear is formed at least partially of a rigid but flexible silicone polymer that is molded to have a specific three-dimensional shape when in a free state. The headgear in other embodiments depicted herein is formed of a flexible silicone rubber or other synthetic material and has the shape of a flat strap or a nonspecific shape when in a free state.
Certain of the embodiments depicted herein additionally employ a conventional fabric strap as the parietal support or the occipital support.
These and other objects, features, and characteristics of the present invention, as well as the methods of operation and functions of the related elements of structure and the combination of parts and economies of manufacture, will become more apparent upon consideration of the following description and the appended claims with reference to the accompanying drawings, all of which form a part of this specification, wherein like reference numerals designate corresponding parts in the various figures. It is to be expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended as a definition of the limits of the invention.
In certain embodiments, the general nature of the invention can be stated as including a headgear structured for use in securing a mask to the head of a patient and including a parietal support, at least a portion of which is structured to extend across a parietal region of the head; an occipital support, at least a portion of which is structured to extend across an occipital region of the head; and a zygomatic support, at least a portion of which is structured to extend across a zygomatic region of the head. The parietal, occipital, and zygomatic supports are connected together, and the zygomatic support includes a pair of zygomatic braces that are each structured to engage the face of the patient and to support the mask in fluid communication with the patient. The zygomatic braces each include at least one of a cephalic element structured to engage the face of the patient in a region cephalic to the crest of the zygomatic bone, and a caudal element being structured to engage the face of the patient in a region caudal to the zygomatic bone.
In certain embodiments, the general nature of the invention could be stated as including a headgear apparatus that includes a nasal interface mask structured to be in fluid communication with the head of a patient and a headgear structured to support the nasal interface mask in fluid communication with the head of the patient. The headgear can be stated as including a parietal support, at least a portion of which is structured to extend across a parietal region of the head; an occipital support, at least a portion of which is structured to extend across an occipital region of the head; and a zygomatic support, at least a portion of which is structured to extend across a zygomatic region of the head. The parietal, occipital, and zygomatic supports are connected together, and the zygomatic support includes a pair of zygomatic braces that are each structured to engage the face of the patient and to support the mask in fluid communication with the patient. The zygomatic braces each include at least one of a cephalic element structured to engage the face of the patient in a region cephalic to the crest of the zygomatic bone, and a caudal element being structured to engage the face of the patient in a region caudal to the zygomatic bone.
As used herein, the singular form of “a”, “an”, and “the” include plural references unless the context clearly dictates otherwise. As used herein, the statement that two or more parts or components are “coupled” shall mean that the parts are joined or operate together either directly or indirectly, i.e., through one or more intermediate parts or components, so long as a link occurs. As used herein, “directly coupled” means that two elements are directly in contact with each other. As used herein, “fixedly coupled” or “fixed” means that two components are coupled so as to move as one while maintaining a constant orientation relative to each other.
As used herein, the word “unitary” means a component is created as a single piece or unit. That is, a component that includes pieces that are created separately and then coupled together as a unit is not a “unitary” component or body. As employed herein, the statement that two or more parts or components “engage” one another shall mean that the parts exert a force against one another either directly or through one or more intermediate parts or components. As employed herein, the term “number” shall mean one or an integer greater than one (i.e., a plurality).
Directional phrases used herein, such as, for example and without limitation, top, bottom, left, right, upper, lower, front, back, and derivatives thereof, relate to the orientation of the elements shown in the drawings and are not limiting upon the claims unless expressly recited therein.
An improved headgear 4 in accordance with a first embodiment of the present invention is depicted in
While the headgear apparatus employs nasal pillow interface 8 to provide fluid communication with the breathing passages of patient 6, it is understood that nasal pillow interface 8 is merely an example of one such patient interface. Other types of interfaces of any type, such as other nasal interfaces, nasal cushions, oral interfaces, or combinations of nasal and oral interfaces may be employed in conjunction with headgear 4 or in conjunction with any other embodiments thereof that are described or otherwise contemplated herein, without limitation.
Headgear 4 can be characterized as including a parietal support 12, an occipital support 16, and a zygomatic support 20 that are connected together. Parietal support 12 can be said to be situated approximately along the parietal bone of patient 6, and occipital support 16 can be generally said to lie approximately across the occipital bone of patient 6, it being noted that the parietal and occipital bones are known cranial bones. While zygomatic bone 10 and the parietal and occipital bones (not expressly depicted herein) are mentioned herein in connection with headgear 4, it is noted that such facial and cranial bones are intended merely for purposes of illustration and could be referred to generally by the expressions “zygomatic region”, “parietal region”, and “occipital region” without departing from the present disclosure.
Occipital support 16 is depicted in
Zygomatic support 20 can be said to include a zygomatic strap 24 and a zygomatic brace 28, with zygomatic strap 24 including an anterior portion 32 extending from zygomatic brace 28 generally toward nasal pillow interface 8 and as further including a posterior portion 36 extending generally from zygomatic brace 28 toward parietal support 12. As can be understood from
Zygomatic strap 24 and zygomatic brace 28 are depicted at the left side of
Thus, when zygomatic brace 28 is engaged with zygomatic bone 10, it is noted that cephalic, caudal, and intermediate elements 40, 44, and 48 will maintain substantially their shape depicted generally in
It is understood that in other embodiments of headgear 4 that are not expressly depicted herein, at least a portion of region of reduced thickness 52 could be in the form of a region of zero thickness, i.e., a region where no material exists, such as would result from an opening formed in zygomatic brace 28. In a situation where only a portion of region of reduced thickness 52 is a region of zero thickness, linking element 56 would have some type of opening formed therein. Alternatively, in a situation where the entirety of region of reduced thickness 52 is a region of zero thickness, linking element 56 would not exist in zygomatic brace 28, and rather zygomatic brace 28 would have an opening in the place of linking element 56.
As can be generally understood from
As has been set forth elsewhere herein, headgear 4 and, more particularly, the combined parietal and zygomatic supports 12 and 20 that are co-formed, possess a specific shape in three dimensions when in a free state, and it is thus understood that when headgear 4 is mounted on patient 6, zygomatic brace 28 will deform slightly and advantageously to conform with the particular shape of the particular zygomatic bone 10 of the particular patient 6. In this regard, linking element 56 formed by region of reduced thickness 52 will deform, i.e., bend, to a significantly greater extent than any of cephalic, caudal, and intermediate elements 40, 44, and 48, thus enabling the geometry of caudal element 44, for instance, to maintain its shape while being advantageously positioned in a region caudal to zygomatic bone 10.
Similarly, the geometry of cephalic element 40 remains generally unchanged, but deformation of linking element 56 enables cephalic element 40 to overlie a region of zygomatic bone 10 that is cephalic to the crest of zygomatic bone 10. Linking element 56 provided by region of reduced thickness 52 thus advantageously enables zygomatic brace 28, which has a specific three-dimensional shape when in a free state, to accommodate various facial and cranial shapes of various patients by conforming to and engaging the patient's particular zygomatic bone when headgear 4 is mounted on patient 6.
Moreover, it can be understood from
Also, some twisting of zygomatic brace 28 along an axis of elongation of zygomatic support 20 will be permitted and will further enable zygomatic brace 28 to engage the various zygomatic bones of the various patients. However, the relatively large transverse dimension of posterior portion 36 along axis 59 when compared with the thickness of posterior portion 36 as can be understood from
It thus can be seen that certain features of headgear 4, such as the configuration of posterior portion 36 at axis 59, enable certain relative flexing of headgear 4, such as in the way posterior portion 36 can relatively bend about axis 59 and twist about the axis of elongation of zygomatic support 20. However, certain features of headgear 4 also resist flexing of headgear 4 in other planes, such as in the way flexing of posterior portion 36 is resisted about an axis orthogonal to axis 59 and into the face of patient 6. Thus, curve element 57 orients zygomatic brace 28 with respect to zygomatic bone 10, and it permits bending of zygomatic brace 28 generally toward zygomatic bone 10 and twisting of zygomatic brace 28 in order to enable engagement with zygomatic bone 10, which advantageously supports headgear 4 on patient 6.
As can be understood from
An alternative to zygomatic brace 28 is depicted generally at the numeral 28A in
Zygomatic brace 28A can be understood from
A zygomatic support 20A that includes zygomatic brace 28A can be said to function in substantially the same way as zygomatic support 20, except that the connection of intermediate element 48A with cephalic and caudal elements 40A and 44A has the effect of limiting the ability of intermediate element 48 to be deflected in certain directions with respect to cephalic and caudal elements 40A and 44A. More particularly, the flexibility afforded by anterior and posterior linking elements 56A and 58A limits to a meaningful extent the flexibility of zygomatic brace 28A to flexing generally only in the plane of the page of
An improved headgear 104 in accordance with a third embodiment of the present invention is depicted generally in
Moreover, because headgear 4 is formed of a rigid but flexible silicone polymer material and is of a specific three-dimensional shape when in a relaxed state, zygomatic loop 130 additionally provides directed stiffness to zygomatic support 120. Longitudinal forces directed along posterior portion 136 of zygomatic strap 124 are directed along cephalic and caudal elements 140 and 144 of zygomatic loop 130 to a bridging element 146 of anterior portion 132 to another loop 138 formed in anterior portion 132, and vice versa. That is, forces between posterior portion 136 and anterior portion 132 are directed along zygomatic loop 130, bridging element 146, and the other loop 138. By configuring cephalic and caudal elements 140 and 144 to have particular shapes, the transfer of forces between posterior portion 136 and bridging element 146 can be controlled. Similarly, loop 138 enables stiffening of anterior portion 132 and for the directing of forces between bridging element 146 and the portion of anterior portion 132 that carries nasal pillow interface 108.
It is also noted that bridging element 146 is of a relatively thicker cross-section than the portions of zygomatic loop 130 and the other loop 138 that are connected therewith, as is indicated in
It is noted that
An improved headgear 204 in accordance with a fourth embodiment of the present invention is depicted generally in
Zygomatic/occipital loop 234 directs forces along a cephalic element 240 and a caudal element 244 thereof to provide support for nasal pillow interface 208 while maintaining a desirable position of nasal pillow interface 208 with respect to the zygomatic bone of the patient. More particularly, zygomatic strap 224 is situated caudal to the zygomatic bone of patient and can be said to engage the zygomatic bone at its caudal region. This is possible, because in addition to zygomatic/occipital loop 234 directing forces along its cephalic and caudal elements 240 and 244, zygomatic/occipital loop 234 can stretch along the coronal plane, i.e., vertically with respect to a standing patient, upon tightening of parietal strap 212.
During such stretching, portions of cephalic element 240 are stretched away from portions of caudal element 244. As such, parietal strap 212 can be tightened to the point that zygomatic brace 228 engages the caudal portion of the zygomatic bone, at which point cephalic element 240 will be maintained in a state of equipoise between the tension afforded by parietal support 212 and the engagement of zygomatic brace 228 with the caudal portion of the zygomatic bone. Simultaneously, caudal element 244 will provide a compressive load at zygomatic brace 228, which provides further support to zygomatic strap 224 to resist nasal pillow interface 208 from becoming disengaged with the nostrils of the patient. As can be understood from
As can be best understood from
An improved headgear 304 in accordance with a fifth embodiment of the present invention is depicted generally in
As can be understood from
As can be understood from
As can be understood from
Regardless of the express enumeration of elements set forth above, it can be seen that many of the indicated elements cooperate in one way or another. For instance, cephalic zygomatic stiffening element 364A and anterior parietal stiffening element 366A together form a unitary elongated stiffening element that extends between the zygomatic region and the parietal region. Similarly, caudal zygomatic stiffening element 364B and caudal occipital stiffening element 372B together form a unitary elongated stiffening element that extends between the zygomatic region and the occipital region of the patient. Likewise, posterior parietal stiffening element 366B and cephalic occipital stiffening element 372A together form a unitary elongated stiffening element that extends between the parietal and occipital regions of the patient.
Because headgear 304 has a fixed shape in three dimensions when in a free state, i.e., in a non-installed state, it can be understood that the various stiffening elements depicted in
For instance, if the portion of headgear 304 indicated in
As has been stated elsewhere herein, any of the elements described herein can be combined with any of the other elements described herein to create new combinations of elements that are within the scope of the present disclosure. By way of example, an improved headgear 404 in accordance with a sixth embodiment of the present invention is depicted generally in
By way of example, zygomatic support 420 includes a caudal zygomatic stiffening element 464B that extends generally only to about the region where zygomatic support 420 and occipital support 416 join one another. In contrast, caudal zygomatic stiffening element 364B in
In contrast,
An improved headgear 504 in accordance with a seventh embodiment of the present invention is depicted generally in
More particularly, headgear 504 includes a stiffening element which can be characterized as a zygomatic/parietal stiffening element 564 that extends along at least a portion of zygomatic support 520 and along at least a portion of parietal support 512. Zygomatic/parietal stiffening element 564 is in the nature of a region of increased physical size in one or more directions transverse to the direction of elongation.
As can be understood from
As can be seen from
By varying the thickness in a direction into the plane of the page of
Strategic configuration of the dimensions and profiles of caudal and cephalic segments 564A and 564B and strategic positioning of inflection region 564C can provide desirable predetermined twisting and bending responses of zygomatic stiffening element 564 in order to enable headgear 504 to be mounted to various patients having various cranial and facial structures. As with certain other embodiments of the headgear set forth herein, headgear 504 is configured to have a fixed three-dimensional shape when in a free state. By carefully configuring zygomatic/parietal stiffening element 564, headgear 504 can be configured to have bending and twisting responses in various planes which enable headgear 504 to be comfortably fit on numerous patients having numerous cranial and facial structures while still comfortably and reliably maintaining nasal pillow interface 508 in fluid communication with the patient's nose.
An improved headgear 604 in accordance with an eighth embodiment of the present invention is indicated generally in
More particularly, zygomatic support 620 includes an anterior support element 678, a posterior support element 680, and a hinge element 682 that is situated between anterior and posterior support elements 678 and 680. As will be set forth in greater detail below, hinge element 682 is configured to provide controlled deflection of anterior support element 678 with respect to posterior support element 680 in order to comfortably and reliably maintain nasal pillow interface 608 in fluid communication with the patient's nose. Anterior and posterior support elements 678 and 680 typically are of a generally fixed thickness into the plane of the page of
Anterior and posterior support elements 678 and 680 are not themselves necessarily intended to deflect to a meaningful extent within the plane of the page of
It is also noted that anterior support element 678 is formed with an anterior radius 686C in the vicinity of nasal pillow interface 608 which likewise affects the positioning of nasal pillow interface 608 within the nostrils of the patient. It is understood, however, that all of the various transverse dimensions and radii can be varied depending upon the needs of the particular application. For example, whereas transverse dimension 684A is greater than transverse dimension 684B, which is greater than transverse dimension 684C, it is understood that other relationships than those expressly depicted herein can be employed if desired to provide particularized bending responses about hinge element 682. Moreover, the various radii 686A, 686B, and 686C can additionally or alternatively be varied in magnitude and position to provide desired bending responses to achieve comfortable installation of headgear 604 on the patient while still maintaining support of nasal pillow interface 608 in the nostrils of the patient.
An improved headgear 704 in accordance with a ninth embodiment of the present invention is depicted in
Zygomatic support 720 includes a zygomatic strap 724A that is more particularly shown in
One example of the cross sectional shape of transverse element 794A is provided along line 30-30 of
An alternative zygomatic strap 724B is depicted in
Another alternative zygomatic strap 724D that can be used in place of zygomatic strap 724A to form a headgear (not expressly depicted herein for simplicity of disclosure) in accordance a twelfth embodiment of the present invention is indicated generally in
It is understood that the various features of zygomatic straps 724A, 724B, 724C, and 724D can be combined with one another in any of a variety of fashions and can be combined with other elements in order to provide different combinations of elements that are still within the scope of the present disclosure. Moreover, various elements from any of zygomatic straps 724A, 724B, 724C, and 724D can be employed in conjunction with any of the elements of the foregoing headgear 4, 104, 204, 304, 404, 504, and 604. The various embodiments and possible combinations thereof advantageously enable therapeutic retention of a nasal pillow interface on a patient while provided enhanced comfort to the patient.
In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word “comprising” or “including” does not exclude the presence of elements or steps other than those listed in a claim. In a device claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The word “a” or “an” preceding an element does not exclude the presence of a plurality of such elements. In any device claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The mere fact that certain elements are recited in mutually different dependent claims does not indicate that these elements cannot be used in combination.
Although the invention has been described in detail for the purpose of illustration based on what is currently considered to be the most practical and preferred embodiments, it is to be understood that such detail is solely for that purpose and that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover modifications and equivalent arrangements that are within the spirit and scope of the appended claims. For example, it is to be understood that the present invention contemplates that, to the extent possible, one or more features of any embodiment can be combined with one or more features of any other embodiment.
Claims
1. A headgear structured for use in securing a mask to the head of a patient, the headgear comprising:
- a parietal support, at least a portion of which is structured to extend across a parietal region of the head;
- an occipital support, at least a portion of which is structured to extend across an occipital region of the head; and
- a zygomatic support, at least a portion of which is structured to extend across a zygomatic region of the head, wherein the parietal, occipital, and zygomatic supports being connected together, and wherein the zygomatic support comprises a pair of zygomatic braces that are each structured to engage the face of the patient and to support the mask in fluid communication with the patient, the zygomatic braces each comprising at least one of:
- a cephalic element structured to engage the face of the patient in a region cephalic to the crest of the zygomatic bone, and
- a caudal element being structured to engage the face of the patient in a region caudal to the crest of the zygomatic bone.
2. The headgear of claim 1, wherein the zygomatic braces each comprise both of the cephalic element and the caudal element.
3. The headgear of claim 2, wherein the zygomatic braces each further comprise a linking element in the form of a region of reduced thickness having a greater deformability than the cephalic and caudal elements, the linking element extending between at least a portion of the cephalic element and at least a portion of the caudal element.
4. The headgear of claim 3, wherein the zygomatic braces each further comprise an intermediate element connected with the linking element, the intermediate element being structured to engage the face of the patient in a region at the crest of the zygomatic bone.
5. The headgear of claim 4, wherein the linking element extends about substantially the entirety of the intermediate element to isolate substantially the entirety of the intermediate element from the cephalic and caudal elements.
6. The headgear of claim 4, wherein at least a portion of the intermediate element extends between at least a portion of the cephalic element and at least a portion of the caudal element.
7. The headgear of claim 6, wherein the region of reduced thickness comprises a region of reduced thickness disposed anterior to the intermediate element and another region of reduced thickness disposed posterior anterior to the intermediate element.
8. The headgear of claim 1, wherein the pair of zygomatic braces are each in the form of a cup that is structured to engage the zygomatic region of the face and to support the mask in fluid communication with the patient.
9. The headgear of claim 1, wherein the zygomatic support further comprises a zygomatic strap, at least a portion of the zygomatic strap being disposed posterior to each zygomatic brace and being of a thickness in a plane toward the patient and having a transverse dimension along an axis transverse to the thickness that is a plurality of times greater than the thickness to permit bending of the zygomatic strap about the axis and to resist bending of the zygomatic strap about another axis transverse to the axis.
10. The headgear of claim 9 wherein the at least portion of the zygomatic strap comprises a pair of curve elements structured to position the zygomatic braces in proximity to the zygomatic regions of the face of the patient.
11. A headgear apparatus comprising:
- (a) a nasal interface mask structured to be in fluid communication with the head of a patient; and
- (b) a headgear structured to support the nasal interface mask in fluid communication with the head of the patient, the headgear comprising: (1) a parietal support, at least a portion of which is structured to extend across a parietal region of the head; (2) an occipital support, at least a portion of which is structured to extend across an occipital region of the head; (3) a zygomatic support, at least a portion of which is structured to extend across a zygomatic region of the head, wherein the parietal, occipital, and zygomatic supports being connected together, and wherein the zygomatic support comprises a pair of zygomatic braces that are each structured to engage the face of the patient and to support the mask in fluid communication with the patient, the zygomatic braces each comprising at least one of: (i) a cephalic element structured to engage the face of the patient in a region cephalic to the crest of the zygomatic bone, and (ii) a caudal element being structured to engage the face of the patient in a region caudal to the crest of the zygomatic bone.
12-14. (canceled)
15. The headgear apparatus of claim 11 wherein the zygomatic braces each comprise both of the cephalic element and the caudal element;
- wherein the zygomatic braces each further comprise a linking element in the form of a region of reduced thickness, the linking element extending between at least a portion of the cephalic element and at least a portion of the caudal element;
- wherein the zygomatic braces each further comprise an intermediate element connected with the linking element, the intermediate element being structured to engage the face of the patient in a region at the crest of the zygomatic bone; and
- wherein the linking element extends about substantially the entirety of the intermediate element to isolate substantially the entirety of the intermediate element from the cephalic and caudal elements.
16. (canceled)
17. The headgear apparatus of claim 11:
- wherein the zygomatic braces each comprise both of the cephalic element and the caudal element;
- wherein the zygomatic braces each further comprise a linking element in the form of a region of reduced thickness, the linking element extending between at least a portion of the cephalic element and at least a portion of the caudal element;
- wherein the zygomatic braces each further comprise an intermediate element connected with the linking element, the intermediate element being structured to engage the face of the patient in a region at the crest of the zygomatic bone;
- wherein at least a portion of the intermediate element extends between at least a portion of the cephalic element and at least a portion of the caudal element; and
- wherein the region of reduced thickness comprises a region of reduced thickness disposed anterior to the intermediate element and another region of reduced thickness disposed posterior anterior to the intermediate element.
18. The headgear apparatus of claim 11, wherein the pair of zygomatic braces are each in the form of a cup that is structured to engage the zygomatic region of the face and to support the mask in fluid communication with the patient.
19. (canceled)
20. The headgear apparatus of claim 11:
- wherein the zygomatic support further comprises a zygomatic strap, at least a portion of the zygomatic strap being disposed posterior to each zygomatic brace and being of a thickness in a plane toward the patient and having a transverse dimension along an axis transverse to the thickness that is a plurality of times greater than the thickness to permit bending of the zygomatic strap about the axis and to resist bending of the zygomatic strap about another axis transverse to the axis; and
- wherein the at least portion of the zygomatic strap comprises a pair of curve elements structured to position the zygomatic braces in proximity to the zygomatic regions of the face of the patient.
Type: Application
Filed: Jul 19, 2012
Publication Date: Jun 19, 2014
Applicant: KONINKLIJKE PHILIPS N.V. (EINDHOVEN)
Inventors: Peter Chi Fai Ho (PittSburgh, PA), Jerome Matula, JR. (Apollo, PA)
Application Number: 14/232,060
International Classification: A61M 16/06 (20060101);